// out
var btn_ot = new Array(2);
var btnname_ot = new Array(2);
btnname_ot[0]="images/up_arrow_ot.gif"
btnname_ot[1]="images/dn_arrow_ot.gif"


// over
var btn_or = new Array(2);
var btnname_or = new Array(2);
btnname_or[0]="images/up_arrow_or.gif"
btnname_or[1]="images/dn_arrow_or.gif"


for (var i=0; i<2; i++) {
	btn_ot[i] = new Image(); btn_ot[i].src = btnname_ot[i];
	btn_or[i] = new Image(); btn_or[i].src = btnname_or[i];	
}

var timer_id;

function scroll_iframe(frm,inc,dir) {
  if (timer_id) clearTimeout(timer_id);
  if (window.frames[frm]) {
    if (dir == "v") window.frames[frm].scrollBy(0, inc);
    else window.frames[frm].scrollBy(inc, 0);
    timer_id = setTimeout("scroll_iframe('" + frm + "'," + inc + ",'" + dir + "')", 20);
  }
}

function stopScroll() { 
  if (timer_id) clearTimeout(timer_id); 
}